Don, allow me to rephrase your comment: "Nobody has really addressed THE 2ND PART OF your originial question". If I got it right, Markus is searching the market for a keyboard that meets his requirement. So what we do is to provide him with info about the current keyboards. So we tell him what we know, that is, thing about equipment we possess and/or are familiar with.
Don't take it personally, it's just a clarification